1. The quality of support I have received from EVGA has been stellar. This has been echoed by many over the years and over multiple sites. I can't count the number of times I have read threads about MB makers being rated and why, including personal reviews (not the paid in kind Newegg stuff) listing EVGA as by far top the heap with regards to support.
2. I agree that Gigabyte's RMA process is easy, relatively fast and straight on the mark. I had a RX580 with a flashed BIOS that died. I RMAed it and told Gigabyte the straight truth. They RMAed the card and send me a new unit. This was just last year. The entire process with 2-3 day shipping each way took about 9 working days.
3. I have heard, but not seen actual proof anywhere that EVGA is willfully contractually bound to NVIDIA, but I have not heard or read this about Intel. They did make AMD based solutions at one point. I owned a few back in the day.
4. I am not a fanboy of any product, except CaseLabs (I weep a little when I think about their fate - really really like their stuff). I prefer EVGA motherboards and I do use other brands also. Ultimately, I am true to myself, my wallet and my needs. Unfortunately for me, now that ASUS went and effed up the ROG Impact VIII into a mini-DTX board instead of mini-ITX (mini-DTX won't fit in my Louqe Ghost - YET)
Unless I can mod the Ghost S1 for the Impact VIII work, I am not sure what board I will use. There will be a STRIX and I hope at least MSI will pop out a mini-ITX as good as the Phantom Gaming Intel solution. Gigabyte has come a long way with their VRMs recently so they are in the running. ASRock, they make decent large boards and pretty good mainstream MBs, but their AMD based stuff is lacking.
5. I have no doubt EVGA staffed up for the mining boom. They had to have known that bubble would burst. They always do. At any rate, I fail to see why they can't at least make AMD based boards again. They are missing a big opportunity in sales. I would fall on it like a fat me sacrificing himself to fall on a bowl of strawberry shortcake - saving others!